1. reflash dd wrt RT-AC66U (dd-wrt-26653-Asus_RT-AC66U.trx) + erase NVRAM = still no 5GHz 2. reflash original asus firmware = 5 Ghz available during wizard but the webui seems to be broken. I can select only 2.4Ghz.
How to Reset Asus RT-N66R WiFi Router Asus RT-N66R Reset with Button. This is the simplest way to reset the Asus RT-N66R WiFi router. All routers have this Reset button. Reset delete all internet or and wireless settings on your device (IP addresses, DNS details, WiFi password, etc). DD-WRT Forum :: View topic - [solved]RT-AC66U - 5GHz 2015-12-1
2 days ago · Domain — router.asus.com (default for ASUS routers) Port — 23 (default for Telnet protocol). Username — admin (default for ASUS routers). Password is whatever you set (default for ASUS routers is admin). To use a command line client: 1. Open Terminal App. 2. Connect to the router via Telnet access protocol by enter this command:
ASUS AC2900 WiFi Dual-band Gigabit Wireless Router with 1.8GHz Dual-core Processor and AiProtection Network Security (RT-AC86U) (Renewed) $145.00: Get the deal:
ASUS AC2900 WiFi Dual-band Gigabit Wireless Router with 1.8GHz Dual-core Processor and AiProtection Network Security (RT-AC86U) (Renewed) $145.00: Get the deal:
How to Reset Asus RT-N66R WiFi Router